Force modulation: A behavioural marker of mind-wandering.

Area of Science:

• Cognitive Psychology
• Neuroscience
• Human-Computer Interaction

Background:

• Mind-wandering is a common cognitive state, but existing measures struggle to distinguish between spontaneous and deliberate forms.
• The Metronome Response Task (MRT) is widely used but lacks the sensitivity to differentiate these subtypes.
• Understanding the distinct characteristics of spontaneous versus deliberate mind-wandering is crucial for cognitive research.

Purpose of the Study:

• To introduce and validate the In Sync Task (IST) as a novel measure for differentiating spontaneous and deliberate mind-wandering.
• To compare the efficacy of the IST against the established Metronome Response Task (MRT).
• To investigate the differential performance costs associated with spontaneous versus deliberate mind-wandering.

Main Methods:

• Participants completed the In Sync Task (IST), requiring synchronization of clicking and force modulation to auditory tone triplets.
• Performance metrics included response time variability and clicking force consistency.
• Data were collected from two independent samples of university students (n=119, n=121).

Main Results:

• The IST successfully differentiated between spontaneous and deliberate mind-wandering.
• Participants showed better clicking force modulation during spontaneous mind-wandering compared to deliberate mind-wandering.
• The Metronome Response Task (MRT) did not show significant differences between mind-wandering subtypes.

Conclusions:

• The In Sync Task (IST) offers enhanced capability in distinguishing subtypes of mind-wandering.
• Deliberate mind-wandering is associated with greater performance decrements than spontaneous mind-wandering.
• The findings suggest distinct neural or cognitive mechanisms underlying spontaneous versus deliberate attention shifts.